Solar Day and Sidereal Day for Mercury and Venus
... In this exercise, you will calculate the solar day for a person on Mercury. The period of revolution, the time interval for Mercury to orbit the Sun (relative to the stars), for Mercury is 88 days (and when I say “day” as a unit, I am referring to Earth days). Mercury’s period of rotation, the time ...
... In this exercise, you will calculate the solar day for a person on Mercury. The period of revolution, the time interval for Mercury to orbit the Sun (relative to the stars), for Mercury is 88 days (and when I say “day” as a unit, I am referring to Earth days). Mercury’s period of rotation, the time ...
Star Formation
... and spend most of their lives • Once on the main sequence, a star stays in the same location on the H-R diagram until it runs out of fuel and begins to die ...
... and spend most of their lives • Once on the main sequence, a star stays in the same location on the H-R diagram until it runs out of fuel and begins to die ...
Models of The Solar System
... • Aristotle, a Greek philosopher reasoned that if Earth circled around the sun, then the relative positions of the stars would change as Earth moves. • This apparent change in the position of an object when viewed from different angles or locations on Earth is known as parallax. • What Aristotle did ...
... • Aristotle, a Greek philosopher reasoned that if Earth circled around the sun, then the relative positions of the stars would change as Earth moves. • This apparent change in the position of an object when viewed from different angles or locations on Earth is known as parallax. • What Aristotle did ...
Days and Years (Sessions I and II) Days and
... a street corner, they must continue to stay in straight lines as they make the turn. Ask, Which member of the line must move faster to keep the line even and straight, the innermost musician who is closest to the corner or outermost musician? (the outermost musician) How is this similar to the Solar ...
... a street corner, they must continue to stay in straight lines as they make the turn. Ask, Which member of the line must move faster to keep the line even and straight, the innermost musician who is closest to the corner or outermost musician? (the outermost musician) How is this similar to the Solar ...
1Barycenter Our solar system consists of the Sun and the
... system with a center of mass. For the EarthMoon system, the barycenter is located 1,710 km below the surface of the Earth. This is because the Earth is far more massive than the Moon and it is this common center of mass around which the Earth and the Moon seem to go around. The International Astrono ...
... system with a center of mass. For the EarthMoon system, the barycenter is located 1,710 km below the surface of the Earth. This is because the Earth is far more massive than the Moon and it is this common center of mass around which the Earth and the Moon seem to go around. The International Astrono ...
Document
... • We can see X-rays from black holes because? a. X-rays are more energetic than visible light and so can escape from the event horizon. b. X-rays can pass through ordinary matter showing us things we can’t normally see. c. Light given off by objects as they enter the event horizon are gravitationall ...
... • We can see X-rays from black holes because? a. X-rays are more energetic than visible light and so can escape from the event horizon. b. X-rays can pass through ordinary matter showing us things we can’t normally see. c. Light given off by objects as they enter the event horizon are gravitationall ...
Lect07-2-4-09
... orbit about the object whose mass we wish to know. 2. We estimate, one way or another, the distance to the object. 3. Kepler’s third law of planetary motion (which falls into this category) states that the square of the period, measured in years, equals the cube of the average distance, measured in ...
... orbit about the object whose mass we wish to know. 2. We estimate, one way or another, the distance to the object. 3. Kepler’s third law of planetary motion (which falls into this category) states that the square of the period, measured in years, equals the cube of the average distance, measured in ...
29-1
... _______________________________________________________________ 23. How does the mass of the sun compare with the mass of Earth? _______________________________________________________________ 24. What is the most common nuclear reaction inside the sun? ______________________________________________ ...
... _______________________________________________________________ 23. How does the mass of the sun compare with the mass of Earth? _______________________________________________________________ 24. What is the most common nuclear reaction inside the sun? ______________________________________________ ...
Astronomy Webquest Part 1: Life of Stars: Go to http://www.odec.ca
... Go to http://www.odec.ca/projects/2002/wongj/public_html/animations.html 1. Stars are born in _______________. When the clouds of interstellar dust and gas pull in gas and start to collapse, the increased heat will cause the atoms to fuse to helium and form ___________________. Click on next. 2. The ...
... Go to http://www.odec.ca/projects/2002/wongj/public_html/animations.html 1. Stars are born in _______________. When the clouds of interstellar dust and gas pull in gas and start to collapse, the increased heat will cause the atoms to fuse to helium and form ___________________. Click on next. 2. The ...
Chapter 11 - Astronomy
... Sun for only a few hundred million years. 2. By the early 20th century, however, geologists showed that the Earth was billions of years old—a period 10 times longer than that necessary for gravitational contraction to produce the Sun’s energy. The theory had to be abandoned. 3. Einstein proposed in ...
... Sun for only a few hundred million years. 2. By the early 20th century, however, geologists showed that the Earth was billions of years old—a period 10 times longer than that necessary for gravitational contraction to produce the Sun’s energy. The theory had to be abandoned. 3. Einstein proposed in ...
Sample Math problems
... These problems are meant to be representative of what you need to know for the final. They are not exactly the problems that will appear in the final exam, but they do require the same set of skills. They might not cover all the formulas and equations that we have seen in the class. I recommend goin ...
... These problems are meant to be representative of what you need to know for the final. They are not exactly the problems that will appear in the final exam, but they do require the same set of skills. They might not cover all the formulas and equations that we have seen in the class. I recommend goin ...
Violent Adolescent Planet Caught Infrared Handed
... formation give an approximation to the number of collisions that may happen in the early Solar System, assuming there was a pool of protoplanets. Sean Raymond (formerly at the University of Colorado and now at the Observatory of Bordeaux) and colleagues used an initial pool of about 100 protoplanets ...
... formation give an approximation to the number of collisions that may happen in the early Solar System, assuming there was a pool of protoplanets. Sean Raymond (formerly at the University of Colorado and now at the Observatory of Bordeaux) and colleagues used an initial pool of about 100 protoplanets ...
Saturn
... Named alphabetically in the order they were discovered, the rings are relatively close to each other, with the exception of the Cassini Division, a gap measuring 4,700 km (2,920 miles). The main rings are, working outward from the planet, known as C, B and A. The Cassini Division is the largest ga ...
... Named alphabetically in the order they were discovered, the rings are relatively close to each other, with the exception of the Cassini Division, a gap measuring 4,700 km (2,920 miles). The main rings are, working outward from the planet, known as C, B and A. The Cassini Division is the largest ga ...
Lesson 2_Going Solar - UCAR Center for Science Education
... solar ovens. I’ll ask them if they think they’ll work. After polling students, I’ll tell them that I think they will, and show them what I’ve brought to cook. (smores) After they are able to explain how they think the ovens might work (and what part of the oven acts like the atmosphere) we’ll prepar ...
... solar ovens. I’ll ask them if they think they’ll work. After polling students, I’ll tell them that I think they will, and show them what I’ve brought to cook. (smores) After they are able to explain how they think the ovens might work (and what part of the oven acts like the atmosphere) we’ll prepar ...
Universe 8e Lecture Chapter 14 Uranus, Neptune, Pluto
... The magnetic axes of both Uranus and Neptune are steeply inclined from their axes of rotation. The magnetic and rotational axes of all the other planets are more nearly parallel. The magnetic fields of Uranus and Neptune are also offset from the centers of the planets. ...
... The magnetic axes of both Uranus and Neptune are steeply inclined from their axes of rotation. The magnetic and rotational axes of all the other planets are more nearly parallel. The magnetic fields of Uranus and Neptune are also offset from the centers of the planets. ...
Moon and planets
... • The basic idea is this: about 4.45 billion years ago, a young planet Earth -- a mere 50 million years old at the time and not the solid object we know today-experienced the largest impact event of its history. Another planetary body with roughly the mass of Mars had formed nearby with an orbit tha ...
... • The basic idea is this: about 4.45 billion years ago, a young planet Earth -- a mere 50 million years old at the time and not the solid object we know today-experienced the largest impact event of its history. Another planetary body with roughly the mass of Mars had formed nearby with an orbit tha ...
The Hertzsprung-Russell Diagram
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
unit 1: earth and the solar system.
... planet until August 2006, when the International Astronomical Union reclassified it as a dwarf planet. ...
... planet until August 2006, when the International Astronomical Union reclassified it as a dwarf planet. ...
Frostburg State Planetarium presents
... • When sun disappears from our view, the air overhead is still ‘seeing’ sun and glowing. • When sun 6 dg. below horizon, turn on lights • When sun 18 dg. below horizon, sky darkest • To see faint star groups, sun must be 12 dg. below • Arctic Circle cities have no darkness in June ...
... • When sun disappears from our view, the air overhead is still ‘seeing’ sun and glowing. • When sun 6 dg. below horizon, turn on lights • When sun 18 dg. below horizon, sky darkest • To see faint star groups, sun must be 12 dg. below • Arctic Circle cities have no darkness in June ...
Starry Night¨ Times - October 2008
... Visible towards the southern horizon from winter through spring in the northern hemisphere, Orion is one of the most easily recognizable and beloved constellations. By far, the most popular celestial gem in the constellation of Orion is M42, The Great Orion Nebula. Although it is 1500 lightyears awa ...
... Visible towards the southern horizon from winter through spring in the northern hemisphere, Orion is one of the most easily recognizable and beloved constellations. By far, the most popular celestial gem in the constellation of Orion is M42, The Great Orion Nebula. Although it is 1500 lightyears awa ...
The Gas Giants Astronomy Lesson 13
... enormous. Thus, the hydrogen and helium comprising the planet is in liquid form. Because the gas giants are so far from the sun, their outer layers are extremely cold. But, due to the increased pressure inside the planet, temperature increased greatly within the planet. Each gas giant has many moons ...
... enormous. Thus, the hydrogen and helium comprising the planet is in liquid form. Because the gas giants are so far from the sun, their outer layers are extremely cold. But, due to the increased pressure inside the planet, temperature increased greatly within the planet. Each gas giant has many moons ...
Cosmic Distance Ladder Terrence Tao (UCLA)
... Once again, the ancient Greeks could answer this question! • Aristarchus already knew that the radius of the moon was about 1/180 of the distance to the moon. Since the Sun and Moon have about the same angular width (most dramatically seen during a solar eclipse), he concluded that the radius of th ...
... Once again, the ancient Greeks could answer this question! • Aristarchus already knew that the radius of the moon was about 1/180 of the distance to the moon. Since the Sun and Moon have about the same angular width (most dramatically seen during a solar eclipse), he concluded that the radius of th ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.